baber/WOPTO huggingface dataset:
Patent GB-1432149-A (GB)
Title: Disperse azo dyestuffs
IPC: C09B31/047
Filed: 1972-10-16
Abstract: 1432149 Disperse azo dyestuffs IMPERIAL CHEMICAL INDUSTRIES Ltd 12 Sept 1973 [16 Oct 1972] 47548/72 Heading C4P Disperse azo dyestuffs, free from sulphonic acid groups, have the formula wherein A<SP>1</SP> is alkylene of at least 2 C, which may be substituted; A<SP>2</SP> is alkylene of at least 4 C, which may be substituted; R is 4 or optionally substituted alkyl or aryl; Y is H, alkyl, alkoxy, Cl, Br, aryloxy or cyclohexyloxy; Z is H, alkyl, alkoxy, Cl or Br; and X is the residue of a diazo component of the aromatic carbocyclic series or of the aromatic heterocyclic series containing N in the heterocyclic ring. Examples of X, where heterocyclic, are thiazole, isothiazole, benzthiazole, thiadiazole or indazole. The dyes are prepared (a) by diazotization and coupling, or (b) by esterification of a terminal hydroxy group in the corresponding azo compound. They produce yellow to navy shades on aromatic polyester textile materials.
Patent GB-1030779-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: A44B19/38
Filed: 1964-11-23
Abstract: 1,030,779. Sliding clasp fasteners. SCOVILL MANUFACTURING CO. Nov. 23, 1964 [Feb. 13, 1964], No. 47647/64. Heading E2S. . A sliding clasp fastener comprises fabric stringer tapes 7, 8 each carrying a continuous coil type element 9 the loops of which terminate short of an end of the tape and a terminal member 14 or 15 of moulded plastics material having a body portion moulded around the edge of the tape immediately beyond the end of the loops, and a flexible finger 19 integral with the body portion extending along the edge of the tape through a plurality of the loops, the finger having transversely extending projections 21 engaging between the plurality of the loops. As shown, in which the fastener element is stitched to the tape through a cord 11 thereon, the terminal marker 15 of one stringer is secured in a channel 17 of a retainer element 16 which also provides a second channel 18 for the terminal element 14, both terminal elements being threadable through a slider 13. The front face of each finger 19 is formed with depressions 22 for accommodating head portions of the companion fastener element.
Patent GB-1485994-A (GB)
Title: Thyristors
IPC: H01L29/74
Filed: 1974-11-05
Abstract: 1485994 Thyristors SIEMENS AG 5 Nov 1974 [18 Feb 1974] 47725/74 Heading H1K A thyristor comprises a semi-conductor body having at least four zones 1 ... 4 of alternating conductivity types including a main emitter 1 and a base 2 having a control electrode 7, a first auxiliary emitter 8 between the main emitter 1 and the control electrode 7 and a second auxiliary emitter 10 between the first auxiliary emitter 8 and the main emitter 1, wherein the lengths of the edges 12, 13, 14 of the first and second auxiliary emitters 8, 10 and the main emitter 1 are chosen so that ignition is initiated in the second auxiliary emitter 10 and then in the main emitter 1, before ignition in the first auxiliary emitter 8. To effect this, the ratio of the lengths of edge 12 of emitter 8 to that part of edge 13 of emitter 10 which lies opposite to the portion 15 of electrode 9 which overlaps base 2 is at least 1 : 3 (as shown c. 1 : 1); and the length ratio of said part of edge 13 to edge 14 of main emitter 1 is not greater than 1 : 4 (as shown, c. 1 : 5). In alternative embodiments, different, non-circularly symmetric geometries of the emitter regions and electrodes are illustrated, including interdigitating electrodes and part-annular emitter regions.
Patent GB-1048840-A (GB)
Title: Halogenated derivatives of monoepoxycyclododecadiene and flame retardant materials comprising them
Inventor: HARE DAVID GEORGE
IPC: C08J9/00
Filed: 1963-12-06
Abstract: The invention comprises halogenation products of 1,2-monoepoxycyclododeca-5,9-diene and halogenation products of adducts of 1,2-monoepoxycyclododeca - 5,9 - diene with a phosphorus halide and/or with a compound containing a hydroxylic group. Specified phosphorus halides are those of the formulae PX3, PX5 and POX3 where X is a halogen. The compound containing a hydroxylic group may contain a simple hydroxyl group, as in water or an alcohol or phenol, or a hydroxyl group forming part of a carboxyl, sulphonic or organic phosphonic radical.  The compounds of the invention are prepared by treating the epoxycyclododecadiene or its adduct with a halogenating agent. The adducts are generally prepared by heating the components together.ALSO:A flame-retardant synthetic resin material comprises a synthetic resin and, as a flame-retarding agent, a halogenation product of 1,2 - monoepoxy - cyclododeca - 5,9 - diene or a halogenation product of an adduct of 1,2-monoepoxycyclododeca-5,9-diene with a phosphorus halide and/or with a compound containing a hydroxylic group.  The resin materials specified are polymers or copolymers of ethylenically unsaturated monomers, for example, hydrocarbons, acrylates, vinyl esters and acrylonitrile.  The resin materials may be foamable or foamed, polystyrene resins being preferred.  In Example 3, polystyrene is dissolved in benzene, a flame-retarding additive is added, and a film is then cast from the solution; the composition is stated to be suitable for the production of a self-extinguishing foamed resin.ALSO:Resin particles may be coated with a flame-retarding agent which is a halogenation product of 1, 2-monoepoxycyclododeca-5, 9-diene or a halogenation product of an adduct of 1, 2-monoepoxycyclododeca-5, 9-diene with a phosphorus halide and/or with a compound containing a hydroxylic group.  Foamable polystyrene heads are especially suitable for treatment.  In a first process, the particles of resin are coated by "tumbling" them in a drum with an appropriate quantity of flame-retarding agent and if desired an adhesive such as an oil or wax.  In a second process, the resin particles are treated with an aqueous dispersion of the flame-retarding agent so that a surface coating is applied, for instance by coagulating the dispersion.
Patent GB-1285105-A (GB)
Title: Apparatus for transfer of liquids
Inventor: BAHR WILLIAM TENNIAN
IPC: B67D7/00
Filed: 1970-10-10
Abstract: 1285105 Loading and unloading liquids ANACONDA AMERICAN BRASS CO 10 Oct 1970 48244/70 Heading B8E Apparatus for loading a tanker vehicle 15, Fig. 1, from a storage tank 13 comprises rigid booms 18, 18<SP>1</SP> which support flexible pipes 16, 16<SP>1</SP> and are swivelable about elbow joints 24, 24<SP>1</SP> and are counterbalanced by weights 31, 31<SP>1</SP> about horizontal axes which pass through universal joints 23, 23<SP>1</SP>. The arrangement allows the assemblies to cross over and under one another without interference. Swivelling joints are provided at 22, 22<SP>1</SP>; 27, 271, and 29, 29<SP>1</SP>. Figs. 2 and 3 (not shown) illustrate different methods of counterbalancing and different ways of providing pivoting of the booms about horizontal and vertical axes. Springs may replace the weights for counterbalancing.
Patent GB-1111004-A (GB)
Title: Improvements in or relating to methods and means for mounting multi-lead devices on printed conductor boards and the like
Inventor: AIREY NORMAN
IPC: H05K7/12
Filed: 1964-11-28
Abstract: 1,111,004. Caps for micro-miniature devices. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. 22 Nov., 1965 [28 Nov., 1964], No. 48453/64. Heading H2E. A mounting bush 14 has a central bore split into four sections 19, 20, 21, 22 (Fig. 2A, not shown), by web portions, the different sections of the bore serving to separate the wires 13 (Fig. 5, not shown) of a container 10 holding micro-miniature components, into four groups when, in mounting the container, the wires are led through the bore. The rim 11 (Fig. 1, not shown), of the container 10 is housed in an annular recess 15 in the bush and correct orientation of the container is ensured by a tongue 12 engaging one of the keyways 16, 17, 18 (Fig. 2A, not shown), the different keyways corresponding to containers with different numbers of wires 13. The orientation of the bush when placed in an aperture 31 in a printed circuit board is governed by a key 24 and keyway 32 (Fig. 5, not shown), while the bush is held in the aperture by a bung 26 which has four fingers 28 which fit into the sections 19, 20, 21, 22 and grip the web portions of the bush. The head 27 of the bung holds the wires 13 between guides 25, and also serves to protect the wires when their ends are soldered to pads 34.
Patent GB-1435296-A (GB)
Title: Method for the recovery of metal components from industrial waste
IPC: C22B7/02
Filed: 1974-11-08
Abstract: 1435296 Recovery of metal components from Industrial waste W H BURROWS 8 Nov 1974 48539/74 Heading C1A A method for the recovery of zinc, copper, lead and iron values from the oxides contained in industrial waste, e.g. electric furnace flue dust, comprises the steps of leaching the waste material with hot (e.g. 90-102 C.) NH 4 Cl solution (e.g. 30% concentration), separating the undissolved iron oxide, adding zinc metal to displace the copper and lead as metals and cooling the solution (e.g. to 20 C. or less) to p.p.t. the zinc component as zinc oxide. The ammonium chloride solution can be recycled for use in the reclamation of extra ZnO from the waste material. The zinc oxide crystals may be acicular, menoclinic or fine powder depending on the rate of p.p.t. or cooling.
Patent GB-1392203-A (GB)
Title: Information records and method of making same
IPC: G11B9/07
Filed: 1972-03-21
Abstract: 1392203 Recording and playback RCA CORPORATION 21 March 1972 [22 March 1971] 48664/74 Divided out of 1392202 Heading G5R Signals, e.g. video signals, to be recorded control the switching between zero intensity and a non-zero intensity of an electron beam, e.g. in a scanning electron microscope, which scans a spiral groove in the surface of a disc, the groove having been coated with a photoresist material which is developed after the exposure of the electron beam, producing a disc record in which the bottom of the groove alternates between two different depths in accordance with the signals. A master record so produced may be coated with nickel which is then removed to form a stamping master for the production of disc replicas of the type described in Specifications 1,392,204, 1,392,205 and 1,392,206 for playback by means of capacitance variation as described in Specifications 1,392,201 and 1,392,202.
Patent GB-1133068-A (GB)
Title: An improved load-carrying vehicle
IPC: B61D45/00
Filed: 1967-10-27
Abstract: 1,133,068. Tank vehicles. DR. ING H.C.F. PORSCHE K.G. 27 Oct., 1967 [24 Nov., 1966], No. 48876/67. Heading B7B. Collapsible tanks 9, 9<SP>1</SP> are housed in compartments formed by the side walls of the vehicle and by covers 19, 19<SP>1</SP> hinged to the roof 2 and covers 18, 18<SP>1</SP> hinged adjacent the floor. The tanks are releasably secured by press fasteners 11 and 12 and are internally braced by cords &c.
Patent GB-1525489-A (GB)
Title: Magnetic bearing arrangement
IPC: F04D19/04
Filed: 1975-11-28
Abstract: 1525489 Automatic control of position TELDIX GmbH and ARTHUR PFEIFFER VAKUUMTECHNIK WETZLAR GmbH 28 Nov 1975 [6 Dec 1974] 49088/75 Heading G3R [Also in Division F2] A rotor, stabilized in a radial direction by active and passive bearings, includes a bell shaped portion into which at least partially extends a subassembly of a rotor position sensor, a circuit for damping rotor radial oscillations and a stator of an electrial drive motor. As shown, for use in a turbo-molecular pump, an inductive sensor 42 detects the position or speed of rotor 5 and controls at least one electromagnetic winding 35 accordingly so as to damp radial rotor oscillations. The winding 35, which has an E or U shaped core, co-operates with a ferromagnetic ring 40 on the bell shaped portion 39 of the rotor, that also houses a rotor drive (e.g. brushless) motor. The output of sensor 42, which can be the same winding as control winding 35, is filtered before amplification so that only mechanical resonant frequencies are damped. The passive bearing 11 comprises a permanent magnet 12 and ferromagnetic parts 14, 15, 18 or alternatively parts 14, 15 may be omitted and ring 18 made from a permanent magnet. The active bearing 23 includes a ferromagnetic portion 30 on the rotor and an electromagnet 24 that regulates the rotor axial position as sensed by device 31, which may be inductive, capacitive or photo-electric. The subassembly cooperating with the bell shaped portion of the rotor makes the moment of inertia at the end of the rotor greater than this moment at the middle of the rotor.
Patent GB-972573-A (GB)
Title: Laminated torsion bar suspension
Inventor: OWENS WALTER JOHN
IPC: F16F1/14
Filed: 1962-12-31
Abstract: 972,573. Torsion springs. MINISTER OF NATIONAL DEFENCE OF H.M.'S CANADIAN GOVERNMENT. Dec. 31, 1962, No. 49180/62. Heading F2S. A torsion bar for a vehicle suspension system comprises first and second pluralities of resilient leaves which are of substantially equal length, are arranged in contiguous parallel relationship, and have a central transverse axis the mid-point of the first plurality of leaves being disposed on the opposite side of the transverse axis to the mid-point of the leaves of the second plurality. As shown, the stacked leaves are arranged in alternate longitudinally-offset pairs 4, 5; 6, 7 &c., and are received in rectangular sockets 25, which are formed in end mountings 2, 3, are closed by end plates 29, 29<SP>1</SP>, and accommodate thrust bearing blocks 30. Wedge-shaped crossbar support combs 31 are located respectively between the bevelled longitudinal sides 34 of the blocks 30, and the corresponding adjacent sides of the sockets 25. Bars 37-43, with their ends located in gaps 33A between teeth 33 in the pair of combs 31 in a socket 25, extend across the width of the latter so that pairs of leaves such as 4, 5 extend between a pair of bars 41, 42 to abut the bearing block 30 alternate pairs of leaves such as 6, 7 abutting bars such as 42. The end bars 40, 41 are provided with flat faces to co-operate with the vertical sides of the recess 25. At the opposite end of the spring the pairs of leaves 4, 5 &c. abut the bar 41 &c., and the alternate pairs of leaves 6, 7 &c. pass through corresponding pairs of rods and abut the bearing block 30. Keeper bars 10, 22 of L-shape in cross-section extend along the longer sides of the socket 25 and bear against the teeth 33 of the combs 31, end extensions of the bars 10, 22 being bolted to the mounting 2. A similar pair of keeper bars 13, 49 are bolted to the end mounting 3. Steel blocks 51, 52 are bolted to the end mounting 3 adjacent the upper and lower faces of the stack of leaves, the edges such as 58, Figs. 9, 10, which engage the outermost leaves being rounded and sloped backwardly at 56 and also curved transversely. The leaves with rounded edges are ground and polished, or peened and are cut back at each end on one or both sides of a central longitudinal axis.
Patent GB-1282963-A (GB)
Title: Delay-line decoder for pal colour television signals
IPC: H04N11/16
Filed: 1970-10-16
Abstract: 1282963 Colour television BLAUPUNKTWERKE GmbH 16 Oct 1970 [18 Oct 1969] 49197/70 Heading H4F A delay-line decoder for PAL colour television signals comprises a push-pull transformer 7 which generates oppositely phased colourcarrier signals at its secondary terminals 11 and 16. In addition the centred tapping 9 and the end terminal 11 are connected to the input terminals of a delay line 10. A winding portion 12 of an auto-transformer 13 is connected in parallel with the output terminals of the delay line 10, and the slider of a variable potential divider 14 coupled across the auto-transformer is connected to the central tapping 9 of the secondary winding 8 of the push-pull transformer 7. This feed-back path to tapping 9 results in colour carrier signals F 1 <SP>1</SP>+F 2  and F 1 <SP>1</SP> - F 2  being derived at terminals 11 and 16 where F 1  and F 2  are the line sequential PAL carrier signals and F 1 <SP>1</SP> signifies F 1  delayed by one line period. The portion of the secondary winding 8 connected in parallel with the input terminals of the delay line is adjustable to compensate for the input capacity of the delay line. An impedance converter (17, Fig. 2, not shown) e.g. a transistor amplifier operating as an emitter follower, may be provided in the feed-back path to central tapping 9, and if desired the ends 11 and 16 of the secondary of push-pull transformer 7 may be connected to the input terminals of the delay line in parallel with a matching resistor (19). In a third embodiment (Fig. 3, not shown) on ohmic potential divider having a central tapping equivalent to tapping 9 is connected in parallel with the push-pull transformer's secondary.
Patent GB-1271164-A (GB)
Title: Improvements in or relating to the mounting of a cover on the socket part of a plug-and-socket connector
Inventor: KRENN FRANZ
IPC: H01R13/447
Filed: 1970-10-16
Abstract: 1,271,164. Two-part couplings. FEDERAL PACIFIC ELECTRIC G.m.b.H. 16 Oct., 1970 [17 Oct., 1969], No. 49348/70. Heading H2E. The socket member 1 of a plug and socket connector is provided with a cover 4 which is hinged by pivots 6, 6<SP>1</SP> integral with the cover engaging in bores 3, 3<SP>1</SP> integral with the socket and held in the closed position by a helical spring 8 which is accommodated in a housing 7 surrounding one pivot and adapted to bear against the socket and the cover. The socket member and cover are formed by injection moulding of a resilient electrically-insulating material.
Patent GB-1454087-A (GB)
Title: Food cutting apparatus
IPC: B26D3/22
Filed: 1973-10-23
Abstract: 1454087 Cutting fruit and vegetables HOBART CORP 23 Oct 1973 [23 Oct 1972] 49368/73 Heading A4C [Also in Divisions B1-B2] Apparatus for cutting fruit and vegetables, particularly potatoes, or other food articles comprises a slicer blade 25, removable strip blades 40 for cutting the food slices into strips and a removable rotatable cutter 45 having L-shaped knives 46 on its periphery for cutting the strips into cubes, a separation vane 50, Fig. 4, being provided to separate the cut food particles from food scraps, discharged on different trajectories. Food articles 31, Fig. 1, are rotated by driving means 27 around a chamber 11 in scoops 34 of a feed member 30 and pressed against and cut by slicer blade 25 located adjacent a passage 20 through a door 15 over a port 16 in the chamber, the blade guiding the slices through a discharge outlet 36 of the passage, a comb blade 39 directing them to circular strip blades 40 removably mounted on door 15 adjacent discharge 36. The cutting edges of knives 46 of cutter 45, also mounted on door 15 are circumferentially spaced at distances greater than the food slices thicknesses so that the food cubes fall from the knives. The cubes are discharged from the rotating cutter on one trajectory and the food scraps discharged subsequently from a different rotational position of the cutter, and thus on a different trajectory, cubes being discharged generally vertically and scraps generally horizontally. The separation vane 50 is pivoted at 51 relative to the cutter 45. Alternatively, the vane may be mounted in a housing near the cutter 45 to provide a first opening at a first position round the cutter to receive food cubes and a second opening at a second position to receive food scraps. The Specification states that the cutter 45 may be removed to produce strips only, or the strip blades 40 removed, the cutter producing crosswise strips which may be separated from scraps by the vane. Both the cutter and the strip blades are said to be removable to produce slices only.
Patent GB-1191719-A (GB)
Title: Device for Measuring Light Intensities
IPC: G01J1/44
Filed: 1967-10-31
Abstract: 1,191,719. Photo-electric circuits. TECHNICON CORP. Oct. 31, 1967 [Nov. 18, 1966], No.49432/67. Heading G1A. The voltage across a logarithmic diode in series with a photo-resistor is linearly-related to the logorithm of the intensity of light illuminating the photo-resistor. If the voltage of a D.C. supply to the diode and photo-resistor is always much greater than the diode voltage, the logarithm of two intensities is directly proportional to the difference in respective diode voltages. Two intensities may be compared directly by a wheatstone bridge formed from two diodes and two photo-resistors.
Patent GB-1326430-A (GB)
Title: Repeater stations and communications systems incorporating the  same
IPC: H04B17/40
Filed: 1970-10-15
Abstract: 1326430 Testing repeaters LICENTIA PATENT - VERWALTUNGS - GmbH 15 Oct 1970 [30 Jan 1970] 49436/70 Heading H4R In a repeater including separate amplifiers for each direction of transmission a switching circuit is arranged, on receipt of a control frequency sent on the phantom circuit, to close a test loop so that a test signal passes through the two amplifiers in succession before returning to a testing station, and where, on cessation of the control frequency the switching circuit restores the original connections so that further transmission of the control frequency is passed to the next succeeding repeater station. The switching circuit is restored to its normal state when testing is completed. As shown the amplifiers V1, V2 are connected to the lines through centre tapped transformers Tr 1-4 and the centre taps on the line side of the transformers are connected together through circuit VP which can be short-circuited by contact d1 A control frequency signal is transmitted using a phantom circuit from a testing station and is prevented from passing to the next succeeding repeater by circuit VP but provides a voltage at S 1 which operates a relay to changeover contacts P12, P21 so that the output of amplifier V1 is connected to the input of amplifier V2 through test loop PS1. After a test signal has been applied transmission of the control frequency signal ceases, the voltage at S1 disappears and the relay contacts return to the position shown. Electronic relay RS operates to close contact d1 so that any further control frequency received will pass on to the next succeeding repeater. Contact d1 will be maintained closed until testing is completed when relay RS will return to its idle state with contact d1 open. In a modification, Fig. 2 (not shown), two test loops are provided so that the repeater can be tested in either transmission direction. An interlocking arrangement ensures that only one test loop can be used at any one time.  The circuit VP can take the various forms indicated in Figs. 3-11 (not shown), and generally consists of a T or T1 network of resistive or inductive impedances together with capacitors and relay contacts which derive the voltage at S1 and can be by-passed by the contact d1.
Patent GB-1439628-A (GB)
Title: Metal coatings for metallic surfaces
IPC: C23C14/02
Filed: 1973-10-24
Abstract: 1439628 Coating with metals by evaporation: alloys GENERAL ELECTRIC CO 24 Oct 1973 [24 Oct 1972] 49552/73 Headings C7A and C7F Substrates of e.g. Ni or Co are coated by vapour deposition with e.g. Fe, Ni or Co or alloys thereof containing Al or Cr by giving the surface  of the substrate a finish, e.g. by using an abrasive slurry, such that it is no greater than 100 r.m.s. (microinches), rotating the substrate whilst scanning with an electron beam to heat it to 1550 to 2050F, and continuing the heating whilst coating. The substrate alloys may be (by weight per cent):- 0À17C, 14 Cr, 5Ti, 0À015B, 3Al, 4W, 4Mo, Balance Ni, 9À5Co, 0À05Zr, balance Nt or 0À07C, 15Cr, 3À3Ti, 0À016B, 4À3Al, 15Co, 4À2Mo balance Na, and the coating may be 25Cr, 12A, lYt balance Fe.